Sheet metal feeding mechanism



1. E. ABRAMS AND-G. E. 0. PARKER.

SHEET METAL FEEDING MECHANISM.

APPLICATION FILED 650.1. 1917.

Patented June 17, 1919.

5 SHEETS-SHET 1.

' Lmwl,

.J. E. ABRAMS AND G. E. D. PARKER.

SHEET METAL FEEDING MECHANISM.

APPLICATION FILED DEC. l9l7' l' v Patented JI1I1617, 1919.

5 SHEETS-SHEET 2@ J. E. ABRAMS AND G. E. D. PARKER. SHEET METAL FEEDINGMECHAN|{SM.

' APPLICATION FILED DEC. I, l9l7- V 1 ,SU'YJ 71 Patented J une 17, 1919.

5 SHEE TSSHEET 3.

J. E. ABRAMS AND G. E. D. PARKER.

SHEET METAL FEEDING MECHANISM.

APPLICATION FILED DEC. I. 1917.

Patented June 17, 1919.

5 SHEETSSHEET 4.

J. E. ABRAMS AND G. E. D. PARKER. SHEET METAL FEEDING MECHANISM.

APPLICATION FILED DEC. l. I917.

Patented June 17, 1919.

5'SHEETSSHEET 5- liEsss E. ABRAMS, on canonsecae, i nnri SYLVANIA, Ali-D E. D. PAPFEQ,

SYIEACUSE, HEX? YORK, ASSIQNOIRS T CDNLIN CAN CGMPAHY, 153%., Ill?GUSZE, NEW YORK, A COIt-PORATIGN 0?? NEW YQRLEL SHEET-1TETA L-FEEDINGMECHANISILYL State of Pennsylvania, and at Syracuse,

county of Onondaga, and State of New York, have i vented certain new anduseful Improvements in Sheet-Metal Feeding Mechanisms, of which thefollowing is a description, reference being had to the accompanyingdrawing and to the figures of reference marked thereon.

't The invention relates to new and useful improvements in sheet metalfeeding mecha nism, and more particularly to a feeding mechanism whichis adapted to feed sheets of metal to a slitter.

An object of the invention is to provide a feeding mechanism whichoperates automatically to present the sheets to the slitter disks andwhich also operates to position the sheet relative to said slitter disk,so that the sheet is fed evenly and that the resulting strips may beuniformly shaped.

In the drawings which show by way of illustration one embodiment of theinventi0n,

Figure 1 is a plan view showing a portion of a. slitter having ourimproved feeding mechanism applied thereto;

Fig. 2 is a detail showing the mechanism for reciprocating the pusher inside elevation;

Fig. 3 is an enlarged plan view showing the automatic meansfor'delivering the sheet 7 to the pusher and for squaring the sheet onthe pusher prior to the delivery of the same by the pusher to theslitter disk;

Fig. 4 is an end view of the parts shown in Fig. 23, viewed Irom theright of the figure;

Fig. 5 is an end view of the parts shown in Fig. 3 from the other sideof the machine; and

Fig. 6 is a front view showing the feedingin rolls for delivering thesheet through the pusher and the supporting bed therefor.

The invention consists in an automatic feeding mechanism, wherein thesheets of metal are delivered to a slitter, 0r soi ieother mechanismadapted to operate upon the Specification oiLetters Patent.

Patented dune 1, aw. Serial no. 204,326.

metal, by a pusher which recigrccatee back and forth on the feedinguntable in proper timing for delivering the sheets o the mechanism whichoperates-n on same. This pusher is provide i w. a Pay gaging wall and anend gagin wall, so the sheet may be god and properly pre sented'to theoperatingmechanism. The sheet is brought against the end gage byreciprocating lever which eiig the opposite end or side edge otti V toor while the pusher is movingfor This seats the sheet metal agains hegage. The sheet is seatedagain gage 'by yielding lingers which lie inthe path of travel of the sheet as the pusher moves forward. The sheetis presented to the pusher by feeding-in rolls which operatecontinuously but which are intermittently separated, so as tointermittently operate upon the sheet. The sheet is placed between thefeed rollsand in proper timing the feed rolls grip the sheet and feed itforward to the pusher.

Referring more in detail to the drawings, Fig. 1 shows in plan view aslitter consisting of a supporting frame having end brackets 1, in whichis mounted a shaft carrying the slitter disks 2, The sheet to be cut issupported by the flexible supports These parts are of the well knownconstruction and further description thereof is not thought necessary. Y

The sheet to be cut is placed on a feedin in table 4 and is slid alongsaid feeding-in table to the slitter disk. The sheet is shoved on thetable by a pusher 5, which is formed with a supporting ledge 6,11 reargaging wall '7 and a side gaging wall The pusher is also provided withslotted lugs 9 which are clamped by suitable bolts 10-10to bars 11.These bars 11 are mounted to slide in grooves 12 formed in the table 4.The bars are provided with a series of holes 13 which receive the bolts10, so that the pusher may be adjusted or shifted from one position toanother to accommodate sheets of dillerent sizes.

Mounted in suitable bearings in the frame "is a shaft 14. This shaft hastwo ,upwardly' projecting arms 15 and these arms are'connectedrespectively by links 16 toy-an ear 17 clamped to the bars 11 on theunderface thcre j f. "he table is slotted to a certain extent, so as topermit these cars to slide back and forth and,v therefore, when theshaft 14: is oscillated the bars will be simultaneously moved toward andfrom the slitter disk. The shaft. l-l is oscillated by a link 18, whichis connected to a crank pin 1!) on the face of disk 20, which disk ismounted on the shaft carrying the upper slitter disk. The other end ofthe link 18 is connected to-an arm 21 fixed to the shaft ll. The shaft14 may, 7 therefore, be oscillated in proper timing to the speed of theshaft car rying the slitter disk.

The slitter mechanism, together with this feeding-in table and pusher,above described, is well known in the art and further detail descriptionof the construction and operation of the same is not. thought necessary.The invention consists primarily in the feeding mechanism for placingthe sheet on the pusher and the gaging mechanism which causes the sheetto engage the rear and end gages of the pusher, so that it will beproperl y presented to the slittcr disks.

Referring more in detail to Figs. 3 to 6, inclusive, there is shownmeans for moving each sheet sidewise in order to cause the same toengage the end gage 8 on the pusher This means includes a swinging rocklever I Said rock lever is pivoted at to a suitable bracket mounted onthe table 4-. The arm 25 of the rock lever carries a. bumper 26 which ispivoted at 27 to the arm and is normally forced outwardly by a spring Apin 25) carried by the bumper and extemling into a slot 30 in the arm25, limits the outward movement, of this bumper. The other arm 31 of therock lever 22 is forked at. 32 to engage a pin 33 on a sliding bar 3%.This sliding bar moves back and forthin suitable lmwkets 35 and 36.(.lamped to the bar 34 is :1. depending arm 37; This-arm carries asleeve through which extends the rod 39. Said rod is secured in thesleeve by a set-screw 40. The rod 38 also slides in suitable hearings inthe brackets 35 and filth A spring 41 is disposed between the sleeve onthe arm 37 and the bracket, 35 and normally forces the rod in thedirection of the arrow. tr- At ifS inner end said rod carries a. roller42 which bears against a cam 43 on the shaft 44, which supports thelower slitter disk. This cam is provided throughout a greater portion ofits circumference with a concentric surface which leads into a depressedsurface ,5. As the cam rotates, the rod 39 will at times be given a,quick forward and backward movement and said movement of the rod willimpart. a quick oscillation to the rock lever 22. This causes the bumper26 to engage the side of the sheet and move the same against the sidegage 8. Inasmuch as the bumper is yieldingly mounted, the rock lever mayhave a positive throw Without bending the sheet: t

The shcet moved against the rear gage 7 by yielding fingers -56. Thesefingers are carried by a cross-shaft L7, and, as clearly shown in Fig.5, there are two fingers one adjacent each end of the sheet. Thesefingers are secured to the cross-shaft. :-7 by suit able screws 48'.This cross-shaft 47 is mount ed in suitable brackets 50, one at eachside of the table -l. The cross-shaft extends through one of thesebrackets and carries an arm 51 which is rigidly secured thereto. Aspring 51" secured at; one end to this arm and at its other end to anextenjon at the base of the bracket 50, norn'ially moves the arms, sothat the same are held in contact with av stop pin The lower ends of thefingers ll} extend into the grooves 12 in the table. As the pusher movesforward, carrying the sheet along "with it, the front edge of the sheet,will strike t se yielding fingers and this will move the sheet backuntil it comes in contact with the rear gage 7. The fingers then yieldto permit the sheet to slide underneath the same and be fed to theslitter disks.

it. will be notedfrom the above that there is means provided forautomatically gaging the side edge of the sheet and for bringing thesheet. into contact with said gage; also for gaging the rear edge of thesheet and for bringing the sheet into contact with sai l rear gage. If,thercforc, a. sheet of metal is placed on the feeding-in table. apywherein advance of the pusher, the machine wall automatically position thesheet on the pusher and convey the samet0 the slitters. -vsa means forfeeding the sheet on to the feeding-in table. there are provided feedingrollcrs 5' These feeding rollers are mounted on a shaft (oopcrating withthe two outer fecding rollers 5i arc. upper feeding rollers 56. whichare nmunted on a shaft 57 suitably driven. The shaft 55 is mounted infixed hearings in the standard 58 which are sccllrc l to the feeding-intable 4. The

shaft .57 is mounted in hearing sleeves 59,

which are mounted to slide vertically in the upper poitions of thestandard Gears 5!) conncct the shafts 55 and 57. A spring W) carricd hrea h standard bears against the upper face of the hearing sleeve andnormally tends to force the feeding rollers 56 into gripping contactwith the feeding rollers 6%. The tension of the spring 6O may be variedby the abutment screws 61. Mounted on each standard is a laterallyprojecting bracket 62. Mounted in th' bracket 6:2 is a shaft, 63. Theshaft 63 carries two arms 64 which project rearwardly under ncath thev-ispective bearing sleeves at the ends of the shaft 57. The extremeends of these arms 64 are rounded to' engage the ii-easing sieevessuostentia-iiy dii'ectiy sneer mash the center of thy she-ft we thespring 60. By eseiiieting ii'se shaft 63 these rms 64 may 33s so as toraise the 'b and at its other end to the bracket 69, normeiiy holds theroller 70 in contact with the cam. This cam is shapeti so as to normallyhold therod 6'? moved to the left untii substantially a hsif rotation ofthe shaft 4 1,

and while said rod is at ies extreme left 1am: position, the shaft- 57will be held fliSBfi, that the feeding rolls 56 are infieeive. Duringshe remainder of the re oi. the shaft 44;, the feeding rolis 56 21E 0!se dropped into cooperativ seuion with the "eciing rolls 5% and willgiip a sheet pieced etween the rolls. and deliver the same on. "to thefeeciing-in wine in advance of the pusher. in f o nt of the feedingsoils is a raised sheet supporter 73. This sheet suppoi 'cer has an endgaging piste 74 acijnsnably secured thereto by bolts 75 which passthrough slots 2 6 into sheet supporter. The sheets may be staoifed onthis sheet supporter and are fed by sin operator one at e time betweenthe feeding roiis 54 and 56. No particular skiii is required in feedingthe sheet enden unskilled opemior may, es therefei'e, piece the sheetsone as is time between the feeding mils. In proper timing to theoperation of the pusher the feeding i'oiis iii. the sheet and willquiekiy mo e the same forward on to the fQECiillg-ill ieoie eriwmee ofethe pusher. As the pusher moves forwei'i the bumper e6 Wiii be nteeiwiththe side edge of i 1 the 1e istei'eiiy ilntii it outset with side Ti1e01 meet pusher will causeflie eh 16 and this will retire; die noverlie-1t of the m unt l it fifitizifit with the II ibei 7 we thesiieei p ope'my preio tiie si ister disks-f i 3 it is obvious that minorchanges the iei lid ei'mnge'ment of k ps-tin sei', 'if-Jfilh in i; 'sPatent, is:

i. A. shee ee m fsheet 101' me :2 id yieizilii "11mm".

eifi'ge J'iie shes/3; .uuu so bi -Lees Wii-il pwiie moves foswerii,

vding mecii ashes S139, M. the same 1 .7 the 3. sneee 'ie em. I 2ireciprocating pusher gages, a swinging arm bumper mounted iieieon Ion ensicie e 398 of the sheet "for me ietei'siii to cause the same '54: cm Ls the side gage, yielding fingers ie-ee in,

Jsth of movement of the sheet IJ the front edge thereof am} missing sai.i'o ooiiteetwltii ssl. rear 5,, the moves forward.

1 shee'i-feeiiing iiieeh" ipiising' e reciprocating pesher having 4m:and side gages, a swinging; rock: lever, s pivoted bumper eeiifieoi. byone arm reek le /er, e spring nennaiiy ioi'eing said bumper outwardly, esto iimitm g the ouswsia'i movement of the amp-er, means; osci1- lasingsaid rook lever, said-"bumper being disposed so co engage the side so'"es of the sheet-e116. move the same, lasers-fly to cause the sheet tocontact with the side on the push-e1.

5. A sheet mechanism compris a reciprocating pusher having re gages, aswinging rock ieveig. e pivoted bumper carriedby one arm saici lever, isspring; moi mil; bumper ouswsrdiy, s step iimiting ward movement of thebumper, means. 01 1 osoiiletmg said level, bumpei' being disposed so asto engage side o? the sheet and move the same let. emise the she We thes pusnsheets, on having the same to contact with the side gage, meansfor engaging the front edge of the sheet for causing the sheetto contactwith the rear gage, opposed feed rollers for feeding the 15 sheet on tothe feed ta l'ile in advance of the pusher, and means for intermittentlyrendermg said feed rollers ineffective.

tures.

JESSE E. ABRAMS. GEORGE E. D. PARKER.

In testimony whereof we aflix our signa-

